Times have changed and some things for the better and some for the worse. My grandfather forbid his children to talk at the table. This is not a good practice, in my opinion. I am sure he had his reasons, but I can’t think of any for myself or my family.
Mealtime should always be enjoyable. This is where the family sits down and has a good meal, and good conversation. What is not good about eating and discussing the events of the day. This is where parents can really get to know their young ones, and teenagers. One good topic is school, what they learned, and what they did. You can talk about friends, and teachers.
I found it is probably better to let them start talking, and then we as parents have to pay close attention, and be sincere in how we respond. Never get upset at the table. Make it a safe zone where family can discuss anything.